Modern vehicles, especially luxury models, are increasingly equipped with pillar-to-pillar (P2P) displays to enhance infotainment and provide co-driver displays (CDDs) for on-demand content. While this setup improves user experience, it introduces potential driver distraction risks. Traditional fixed privacy foils, like those used in laptops, are often too rigid and unpopular with car owners. The introduction of electronically switchable privacy displays (SPDs) offers a more flexible solution by allowing dynamic content visibility control. SPDs can operate in two modes: public (wide-view) mode, where both the driver and co-driver can see the display, and private (narrow-view) mode, which limits content visibility to the co-driver only. Optical measurements are essential to ensure the safety and quality of these displays, ensuring they reduce driver distraction while maintaining high image quality for the co-driver. This presentation will explore SPD technology, optical testing methodologies, and the potential challenges in achieving optimal performance.

Key topics you will hear about include:

• Electronically switchable privacy displays (SPDs) for automotive applications
• The importance of optical measurements to balance driver safety and co-driver experience
• Key metrics for evaluating SPD performance, including switching ratio (SR) and luminance
• Challenges in achieving uniformity and image quality in private mode without compromising safety